new block for build

[BoostKrazy]

just bought a 7 bolt 4g63t bottom end, was running when pulled.. the engine in my gsx atm is fine, no problems (yet) so i was planning on putting this new block on the stand and building it up while my gsx is running on the pretty stock 7 bolt at the moment, or should i keep it and hold onto it until my current 7 bolt blows?.. i want to run my t67 on this new block, kinda wanna do a 2.4l stroker also... i guess im just looking for ideas, hints, advice... pro's/con's of going stroked, 2.1l+ (more torque less rpms?) what internals should i run? 1g or 2g head? cams? etc.. in advance, THANKS as always guys

 

[H4G64T]

Well if you want to do a 2.4L stroker, the block you just bought is worthless.

 

[BoostKrazy]

cant you use a 4g64 crank in a 4g63?... and if i cant do 2.4, i know you can do 2.3...

 

[agentorange313]

cant you use a 4g64 crank in a 4g63?...

that makes a 2.3L stroker.

 

[BoostKrazy]

so a 4g64 crank and a .30 bore = 2.4?

 

[agentorange313]

so a 4g64 crank and a .30 bore = 2.4?

No it does not. If you look up the formula to figure out displacement its not just boring a cylinder out.

http://www.dsmtuners.com/forums/cylinder-head-short-block/392681-bored-over-engine.html
http://www.dsmtuners.com/forums/str...acement-various-combinations-bore-stroke.html

4g64 block with a 4g64 crank will have a 2.4L displacement.

 

[WES_393]

The 4g64 crank has 12mm extra throw and is bored to 86.5 from the factory. These things put together give a stock 4g64 a displacement of 2351cc which is enough to round up to 2.4L. You would have to bore your 4g63 to 86.5mm to get the same displacement which is not recommended without having the block carefully inspected by a professional.

 

[H4G64T]

A 64 crank in a 63 block is really a 2261cc engine, meaning it's not even a 2.3 yet, never mind a 2.4.

 

[WES_393]

A 64 crank in a 63 block is really a 2261cc engine, meaning it's not even a 2.3 yet, never mind a 2.4.

But that is assuming stock bore. A 4g64 crank, stock length rods, and 6mm offset pistons would still give you a total of 100mm throw (just 12mm at the bottom only), so you only need the extra .060 to make it a 2351cc just like the 4g64. So you could technically make a 4g63 into a 2.4.

 

[H4G64T]

But that is assuming stock bore. A 4g64 crank, stock length rods, and 6mm offset pistons would still give you a total of 100mm throw (just 12mm at the bottom only), so you only need the extra .060 to make it a 2351cc just like the 4g64. So you could technically make a 4g63 into a 2.4.

I'd rather just go with the 64 block than weaken my block that much.

 

[BoostKrazy]

ok so scratch that... lets say i wanna stay 2.0L, best route for just an all out boost monster on a t67... 450+ hp dd.